C++ impact and status on Exercism

C++

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C++ Track Management

This page provides the Exercism community with the information and tools needed to manage the C++ track.

Students

111,130

Submissions

1,157,372

Mentoring Discussions

11,931

The C++ track needs attention ⚠️

Building

C++ syllabus

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Help create the track syllabus: is a set of concepts and learning exercises put together to teach foundational elements of the programming language.

Next goal: Create a complete syllabus with at least 20 concepts. Find out more.

16 concepts being taught

Includes

3,480 learnt

Strings

3,480 learnt

Basics

6,789 learnt

Numbers

2,582 learnt

Namespaces

4,384 learnt

Booleans

4,537 learnt

Comparisons

2,190 learnt

If Statements

2,190 learnt

Arrays and Vectors

1,248 learnt

Loops

1,797 learnt

Classes

1,482 learnt

References

951 learnt

Enumerations

1,037 learnt

Switch Statements

1,037 learnt

Headers

541 learnt

Functions

183 learnt

13 active learning exercises

Started

Attempts

Completions

Mentoring requests

Log Levels

4,542

35,073 (avg. 7.7)

3,480 (76.6%)

93 (2.0%)

Lasagna

9,342

36,770 (avg. 3.9)

6,789 (72.7%)

129 (1.4%)

Freelancer Rates

2,853

23,337 (avg. 8.2)

2,582 (90.5%)

41 (1.4%)

Last Will

5,284

28,901 (avg. 5.5)

4,384 (83.0%)

62 (1.2%)

Pacman Rules

4,952

25,390 (avg. 5.1)

4,537 (91.6%)

50 (1.0%)

Vehicle Purchase

2,291

13,636 (avg. 6.0)

2,190 (95.6%)

20 (0.9%)

Making the Grade

1,477

23,619 (avg. 16.0)

1,248 (84.5%)

42 (2.8%)

Interest is interesting

1,918

13,153 (avg. 6.9)

1,797 (93.7%)

22 (1.1%)

Ellen's Alien Game

1,603

10,129 (avg. 6.3)

1,482 (92.5%)

23 (1.4%)

Election Day

1,040

11,274 (avg. 10.8)

951 (91.4%)

18 (1.7%)

Troll the Trolls

1,143

9,949 (avg. 8.7)

1,037 (90.7%)

27 (2.4%)

Doctor Data

690

9,260 (avg. 13.4)

541 (78.4%)

17 (2.5%)

lasagna-master

227

3,120 (avg. 13.7)

183 (80.6%)

3 (1.3%)

Practice Exercises

Learn More

Practice Exercises are exercises designed to allow students to solve an arbitrary problem, with the aim of them making use of the concepts they have learned so far.

Synced primary repo: 38eaa89d373f12ca44590c032e61f658996a6683 (Updates should be instant)

Next goal: Implement 133 practice exercises. Find out more.

80 active practice exercises

Started

Attempts

Completions

Mentoring requests

Hello World

76,285

210,084 (avg. 2.8)

39,481 (51.8%)

12 (0.0%)

Leap

22,025

90,052 (avg. 4.1)

11,001 (49.9%)

2,502 (11.4%)

Reverse String

12,281

79,777 (avg. 6.5)

7,636 (62.2%)

1,495 (12.2%)

Space Age

7,388

58,061 (avg. 7.9)

3,701 (50.1%)

1,123 (15.2%)

Triangle

4,962

36,385 (avg. 7.3)

2,989 (60.2%)

759 (15.3%)

Grains

3,438

23,587 (avg. 6.9)

2,765 (80.4%)

596 (17.3%)

Raindrops

4,688

29,698 (avg. 6.3)

3,948 (84.2%)

579 (12.4%)

Pangram

2,729

19,956 (avg. 7.3)

2,185 (80.1%)

484 (17.7%)

Two Fer

2,535

10,241 (avg. 4.0)

2,116 (83.5%)

83 (3.3%)

Grade School

2,865

24,468 (avg. 8.5)

1,858 (64.9%)

220 (7.7%)

Hamming

4,410

12,083 (avg. 2.7)

3,578 (81.1%)

359 (8.1%)

Nucleotide Count

2,935

15,274 (avg. 5.2)

2,130 (72.6%)

278 (9.5%)

RNA Transcription

2,200

10,514 (avg. 4.8)

1,803 (82.0%)

169 (7.7%)

Collatz Conjecture

1,754

8,099 (avg. 4.6)

1,479 (84.3%)

51 (2.9%)

Difference of Squares

2,879

8,354 (avg. 2.9)

2,500 (86.8%)

167 (5.8%)

Nth Prime

1,969

13,012 (avg. 6.6)

1,317 (66.9%)

128 (6.5%)

Queen Attack

1,670

12,684 (avg. 7.6)

1,089 (65.2%)

102 (6.1%)

Sieve

1,601

8,127 (avg. 5.1)

1,268 (79.2%)

119 (7.4%)

Say

1,428

11,499 (avg. 8.1)

778 (54.5%)

111 (7.8%)

Gigasecond

2,700

5,215 (avg. 1.9)

1,831 (67.8%)

253 (9.4%)

Secret Handshake

1,056

5,382 (avg. 5.1)

853 (80.8%)

44 (4.2%)

Allergies

1,646

11,189 (avg. 6.8)

1,123 (68.2%)

69 (4.2%)

Protein Translation

974

5,235 (avg. 5.4)

804 (82.5%)

40 (4.1%)

Sum of Multiples

1,482

5,412 (avg. 3.7)

1,130 (76.2%)

71 (4.8%)

Prime Factors

1,200

3,989 (avg. 3.3)

965 (80.4%)

50 (4.2%)

Robot Name

1,388

8,354 (avg. 6.0)

966 (69.6%)

108 (7.8%)

Clock

995

4,715 (avg. 4.7)

570 (57.3%)

50 (5.0%)

Meetup

792

2,280 (avg. 2.9)

437 (55.2%)

23 (2.9%)

Beer Song

868

5,002 (avg. 5.8)

656 (75.6%)

34 (3.9%)

Atbash Cipher

1,464

21,252 (avg. 14.5)

1,091 (74.5%)

80 (5.5%)

Trinary

1,339

7,905 (avg. 5.9)

1,168 (87.2%)

31 (2.3%)

Binary Search

993

6,463 (avg. 6.5)

682 (68.7%)

39 (3.9%)

Phone Number

972

4,383 (avg. 4.5)

695 (71.5%)

38 (3.9%)

Series

716

2,932 (avg. 4.1)

553 (77.2%)

22 (3.1%)

Complex Numbers

884

4,593 (avg. 5.2)

569 (64.4%)

22 (2.5%)

Food Chain

884

2,169 (avg. 2.5)

637 (72.1%)

27 (3.1%)

Roman Numerals

779

2,780 (avg. 3.6)

572 (73.4%)

23 (3.0%)

Bob

2,587

14,304 (avg. 5.5)

2,133 (82.5%)

252 (9.7%)

Word Count

1,344

4,956 (avg. 3.7)

1,019 (75.8%)

88 (6.5%)

Circular Buffer

732

5,294 (avg. 7.2)

435 (59.4%)

42 (5.7%)

Crypto Square

648

4,472 (avg. 6.9)

434 (67.0%)

20 (3.1%)

ETL

1,283

2,847 (avg. 2.2)

1,040 (81.1%)

42 (3.3%)

Matching Brackets

941

5,660 (avg. 6.0)

738 (78.4%)

33 (3.5%)

Anagram

1,493

4,007 (avg. 2.7)

1,165 (78.0%)

94 (6.3%)

Binary Search Tree

977

4,298 (avg. 4.4)

319 (32.7%)

36 (3.7%)

Luhn

1,088

10,662 (avg. 9.8)

876 (80.5%)

51 (4.7%)

Acronym

852

3,470 (avg. 4.1)

644 (75.6%)

27 (3.2%)

Armstrong Numbers

1,144

4,887 (avg. 4.3)

985 (86.1%)

29 (2.5%)

Binary

1,125

3,973 (avg. 3.5)

893 (79.4%)

82 (7.3%)

Hexadecimal

1,131

4,825 (avg. 4.3)

932 (82.4%)

70 (6.2%)

Isogram

2,350

4,233 (avg. 1.8)

1,477 (62.9%)

97 (4.1%)

Pascal's Triangle

752

2,543 (avg. 3.4)

577 (76.7%)

25 (3.3%)

Perfect Numbers

252

1,608 (avg. 6.4)

212 (84.1%)

5 (2.0%)

Scrabble Score

1,094

3,157 (avg. 2.9)

829 (75.8%)

90 (8.2%)

All Your Base

655

2,879 (avg. 4.4)

423 (64.6%)

45 (6.9%)

Robot Simulator

1,102

3,943 (avg. 3.6)

623 (56.5%)

49 (4.4%)

Bank Account

465

1,985 (avg. 4.3)

235 (50.5%)

34 (7.3%)

Darts

1,143

7,075 (avg. 6.2)

1,011 (88.5%)

14 (1.2%)

Largest Series Product

234

1,758 (avg. 7.5)

186 (79.5%)

6 (2.6%)

Isbn Verifier

376

2,779 (avg. 7.4)

281 (74.7%)

11 (2.9%)

Linked List

666 (avg. 11.1)

31 (51.7%)

1 (1.7%)

Simple linked list

401

3,416 (avg. 8.5)

250 (62.3%)

14 (3.5%)

High Scores

352

3,063 (avg. 8.7)

324 (92.0%)

8 (2.3%)

Eliud's Eggs

344

1,253 (avg. 3.6)

313 (91.0%)

4 (1.2%)

Diamond

532 (avg. 7.9)

48 (71.6%)

3 (4.5%)

Run-Length Encoding

870 (avg. 12.3)

59 (83.1%)

0 (0.0%)

Rotational Cipher

257

1,792 (avg. 7.0)

228 (88.7%)

3 (1.2%)

Resistor Color

485 (avg. 6.3)

64 (83.1%)

1 (1.3%)

Resistor Color Duo

355 (avg. 5.2)

57 (83.8%)

0 (0.0%)

Minesweeper

290 (avg. 5.8)

32 (64.0%)

0 (0.0%)

Sublist

510 (avg. 11.9)

30 (69.8%)

1 (2.3%)

List Ops

904 (avg. 13.3)

38 (55.9%)

1 (1.5%)

Knapsack

397 (avg. 11.3)

20 (57.1%)

2 (5.7%)

Two Bucket

146 (avg. 3.8)

14 (36.8%)

0 (0.0%)

Yacht

353 (avg. 9.5)

28 (75.7%)

0 (0.0%)

Kindergarten Garden

138

766 (avg. 5.6)

111 (80.4%)

3 (2.2%)

D&D Character

292 (avg. 5.6)

35 (67.3%)

1 (1.9%)

Spiral Matrix

294 (avg. 8.6)

22 (64.7%)

1 (2.9%)

Parallel Letter Frequency

362 (avg. 7.7)

26 (55.3%)

0 (0.0%)

Pig Latin

195 (avg. 5.4)

18 (50.0%)

1 (2.8%)

53 unimplemented practice exercises

Affine Cipher

Alphametics

Book Store

Bottle Song

Bowling

Change

Connect

Conway's Game of Life

Custom Set

Dominoes

DOT DSL

Error Handling

Flatten Array

Forth

Go Counting

Grep

Hangman

House

Killer Sudoku Helper

Ledger

Lens Person

Markdown

Matrix

Micro Blog

OCR Numbers

PaaS I/O

Palindrome Products

Poker

POV

Proverb

Pythagorean Triplet

Rail Fence Cipher

Rational Numbers

React

Rectangles

Resistor Color Trio

REST API

Saddle Points

Satellite

SGF Parsing

Simple Cipher

Square Root

State of Tic-Tac-Toe

Strain

Tournament

Transpose

Tree Building

Twelve Days

Variable Length Quantity

Word Search

Wordy

Zebra Puzzle

Zipper

1 foregone practice exercise

Point Mutations

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Programming Tags

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Help manage the tags used to group, filter and recommend solutions, approaches and articles.

0 tags

Test Runner

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Create Test Runners that have the single responsibility of taking a solution, running all tests and returning a standardized output.

Current version: 049fa0a23fb2350f4302329bbfbf2899f961c19c (Takes up to 10 mins to deploy)

Total Test Runner Runs

1,121,470

Test Run Pass Rate

17.2% (193047)

Test Run Fail Rate

22.4% (251404)

Test Run Error Rate

60.4% (677019)

Representer

Learn More

Build a Representer: a bit of code that has the single responsibility of taking a solution and returning a normalized representation of it.

Current version: 1cbd88e9cc94935695e4db9f39a8476a706d63df (Takes up to 10 mins to deploy)

Total Representer Runs

221,127

Total Representation Comments Made

28,343

Feedback Given Frequency

12.8%

Analyzer

Learn More

Build an Analyzer for C++: Exercism's analyzers automatically assess student's submissions and provide mentor-style commentary.

Next goal: Build an Analyzer. Find out more.

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The C++ track needs attention ⚠️

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